It is hard to eat a healthy diet when you eat at fast-food restaurants often, the site goes on to say. Many foods are cooked with a lot of fat, even if they are not trans fats. Many fast-food restaurants do not offer any lower-fat foods.
Lithuanians will speak Russian automatically, Polish is a different language but they will have learnt Russian in school in the same way that English children learn French, that is - because they're the immediate neighbours. In the Old DDR, they taught Russian as the second language automatically. Some schools there still do.
Both Polish and Lithuanian are Indo-European languages, but so are Sanskrit, Norwegian, Portuguese, English and a whole bunch of other languages too. Polish belongs to the Slavic branch, as does e.g. Russian, Bulgarian, Slovak and several more. Lithuanian and Latvian are the only languages in the Baltic group of the Indo-European languages, and Lithuanian is generally considered to be the Indo-European language with the most ancient traits. Lithuanian and Latvian are not mutually understandable.